From: Richard W.M. Jones <rjones@redhat.com>
Date: Thu, 19 Oct 2023 13:28:07 +0000 (+0100)
Subject: 2023-koji: Add scaling notes
X-Git-Url: http://git.annexia.org/?a=commitdiff_plain;h=cd5c02e76c817cf91b0249ac1f88031e59b75df1;p=riscv-talks.git

2023-koji: Add scaling notes
---

diff --git a/2023-hardware/notes.txt b/2023-hardware/notes.txt
index c13f6d7..62bcdb3 100644
--- a/2023-hardware/notes.txt
+++ b/2023-hardware/notes.txt
@@ -187,3 +187,8 @@ A few tips to make TCG run (a bit) fast(er):
  - Software TLB
 
  - Fast vs slow jumps
+
+ - Performance scales almost linearly with # vCPUs
+
+    * I compared 4 vCPU vs 16 vCPU virtual machine, and parallelized
+      build speed inside the guest increased by 3.3x, which is almost linear